Scholarly interest in workaholism has increased dramatically in recent years. This research has underscored the detrimental effects of workaholism for employees, their families, and the organizations ...that employ them. Despite drastic improvements in the quality of studies examining workaholism over the past several decades, researchers continue to almost exclusively rely on older measures of workaholism or new measures derived from these original measures. In the present study, we outline why a new measure is needed and propose a multidimensional conceptualization of workaholism that encompasses motivational, cognitive, emotional, and behavioral dimensions. We then develop and validate a new multidimensional measure of workaholism: the Multidimensional Workaholism Scale (MWS). Evidence from 5 samples representing individuals working in a wide variety of occupations and industries throughout the United States (total N = 1,252) provides support that (a) our proposed 4-factor structure replicates and fits better than alternative models; (b) the measure demonstrates high reliability and content validity; (c) the measure demonstrates evidence for convergent and discriminant validity with constructs in workaholism's nomological network; (d) the measure demonstrates incremental validity in the prediction of important outcomes over and above prior measures of workaholism; and (e) the different dimensions demonstrate incremental validity in the prediction of specific outcomes over and above other dimensions of the MWS. Overall, results from the present study suggest that the MWS is a reliable and valid measure that can advance a more nuanced approach to research and practice relating to workaholism.
Solution-processed organic photovoltaic cells (OPVs) hold great promise to enable roll-to-roll printing of environmentally friendly, mechanically flexible and cost-effective photovoltaic devices. ...Nevertheless, many high-performing systems show best power conversion efficiencies (PCEs) with a thin active layer (thickness is ~100 nm) that is difficult to translate to roll-to-roll processing with high reproducibility. Here we report a new molecular donor, benzodithiophene terthiophene rhodanine (BTR), which exhibits good processability, nematic liquid crystalline behaviour and excellent optoelectronic properties. A maximum PCE of 9.3% is achieved under AM 1.5G solar irradiation, with fill factor reaching 77%, rarely achieved in solution-processed OPVs. Particularly promising is the fact that BTR-based devices with active layer thicknesses up to 400 nm can still afford high fill factor of ~70% and high PCE of ~8%. Together, the results suggest, with better device architectures for longer device lifetime, BTR is an ideal candidate for mass production of OPVs.
Although conscientiousness exhibits positive relations with psychological well‐being, theoretical and empirical work suggests individuals can be too conscientious, resulting in ...obsessive‐compulsiveness, and therein less positive individual outcomes. However, the potential for curvilinearity between conscientiousness and well‐being has been underexplored.
We measured 912 subjects on facets of conscientiousness, obsessive‐compulsive personality, and well‐being variables (life satisfaction, job satisfaction, self‐esteem, positive affect, negative affect, work stress). Methods of scoring included traditional sum‐scoring, traditional item response theory (IRT), and a relatively new IRT approach. Structural models were estimated to evaluate curvilinearity.
Results confirmed the curvilinear relationship between conscientiousness and well‐being, and demonstrated that differential facet‐level relationships underlie weaker curvilinearity at the general trait level. Consistency was found in the strength of relation between conscientiousness facets with their obsessive‐compulsive variants and their contribution to decreased well‐being. The most common association was that higher standing on conscientiousness facets was positively related to negative affect.
Findings support the idea that extreme standing on facets of conscientiousness more strongly linked to their obsessive‐compulsive variants contributed to lower well‐being, highlighting the importance of considering alternative functional representations of the relationship between personality and other constructs. Future work should seek to further clarify the link between conscientiousness and negative affect.
We provide a comprehensive qualitative review of 67 published studies that have examined mindfulness-based training interventions conducted with employees. The findings indicate that the most common ...research designs were the pre-test/post-test only design (35.8%) and the randomized waitlist control group design (26.9%). About two-thirds of the studies included a control group (61.2%), with approximately three-quarters (75.6%) of these studies using random assignment. Of the 63 studies that used a conventional experimental design, the majority (65.1%) included only one follow-up assessment, most often immediately after training. Results indicated a great degree of heterogeneity in terms of program content, although many studies used some adaptation of Kabat-Zinn's (1990) Mindfulness-Based Stress Reduction (41.8%), an approach with a strong evidentiary base with clinical populations. All training programs incorporated practice, most (85.1%) used multiple methods of delivering the training material, and training varied considerably in total duration, session length, and the number of training sessions. Our review also found that the intended purpose of mindfulness-based training for employees was most commonly the reduction of stress/strain (80.6%), although a wide range of other targeted outcomes were documented. Based on our findings, we offer suggestions for future research aimed at advancing our understanding of mindfulness-based training interventions with employees.
•Kabat-Zinn’s Mindfulness-Based Stress Reduction program has been influential in the design of training for employees.•There is heterogeneity in the design, delivery, and evaluation of mindfulness-based training.•A wide range of outcomes have been the target of training, with stress/strain being most common.
Pre-eclampsia is a major cause of maternal and fetal mortality and morbidity worldwide. Its pathophysiology remains unclear, but mitochondrial dysfunction and oxidative stress have been implicated. ...L-Ergothioneine is a naturally occurring, water-soluble betaine, that has demonstrated antioxidant properties. Using the reduced uterine perfusion pressure (RUPP) rat model of pre-eclampsia, this study aimed to define the plasma metabolic profile following treatment with L-Ergothioneine.
The effect of L-Ergothioneine (ET) treatment was explored using in vivo treatment in rats: Sham control (SC, n = 5), RUPP control (RC, n = 5), Sham +ET (ST, n = 5), RUPP +ET (RT, n = 5). Differential expression of plasma metabolites were obtained using untargeted liquid chromatography coupled to mass spectrometry. Statistical analysis was performed on normalised data comparing RC to SC, RT to RC, and RT to ST. Metabolites significantly altered (FDR < 0.05) were identified through database search.
We report significantly lower levels of L-palmitoylcarnitine in RC compared to SC, a fatty acyl substrate involved in beta-oxidation in the mitochondria. We report that a metabolite that has been associated with oxidative stress (Glutamylcysteine) was detected at significantly higher levels in RT vs RC and RT vs ST. Five metabolites associated with inflammation were significantly lower in RT vs RC and three metabolites in RT vs ST, demonstrating the anti-inflammatory effects of ET in the RUPP rat model of pre-eclampsia.
L-Ergothioneine may help preserve mitochondrial function by increasing antioxidant levels, and reducing inflammatory responses associated with pre-eclampsia. This study shows the potential of L-Ergothioneine as a treatment for pre-eclampsia.
The aim of this article is to demonstrate "mentoring through service-learning" models can be powerful avenues to support the development of emerging adult practitioners, and are scalable to new ...global contexts when careful attention is paid to the local culture and evidence-based principles for mentoring and service-learning. The study presents outcome findings for mentors who participated in Campus Connections Aotearoa, a culturally translated version of a US-based service-learning experience and therapeutic youth mentoring program implemented in New Zealand, based on a mixed-method, pre-post evaluation survey involving 62 ethnically diverse mentors (81% female). A large, significant increase in mentoring self-efficacy and small to moderate significant increases for attunement to others, sociability and leadership, and problem-solving and perspective-taking were found. Open-ended survey responses revealed self-reported changes in both personal and professional growth. The discussion highlights the importance of theory and evidence-driven design decisions and an intensive evidence-informed training curriculum for mentoring-based service-learning programs.
Good‐ee! The first one‐pot olefin cyclopropanation that gives high ee is reported. The optimized catalyst is the 4‐Br‐substituted chiral paddle‐wheel tetracarboxylatodirhodium(II) complex based on ...N‐naphthaloyl‐(S)‐tert‐leucinate. X‐ray structural analysis of the parent catalyst reveals a square chiral crown cavity shrouding the axial coordination site (see figure).
Given advantages of freely available and modifiable measures, an increase in the use of measures developed from the International Personality Item Pool (IPIP), including the 300-item representation ...of the Revised NEO Personality Inventory (NEO PI-R; Costa & McCrae,
1992a
) has occurred. The focus of this study was to use item response theory to develop a 60-item, IPIP-based measure of the Five-Factor Model (FFM) that provides equal representation of the FFM facets and to test the reliability and convergent and criterion validity of this measure compared to the NEO Five Factor Inventory (NEO-FFI). In an undergraduate sample (n = 359), scores from the NEO-FFI and IPIP-NEO-60 demonstrated good reliability and convergent validity with the NEO PI-R and IPIP-NEO-300. Additionally, across criterion variables in the undergraduate sample as well as a community-based sample (n = 757), the NEO-FFI and IPIP-NEO-60 demonstrated similar nomological networks across a wide range of external variables (r
ICC
= .96). Finally, as expected, in an MTurk sample the IPIP-NEO-60 demonstrated advantages over the Big Five Inventory-2 (Soto & John,
2017
; n = 342) with regard to the Agreeableness domain content. The results suggest strong reliability and validity of the IPIP-NEO-60 scores.
The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) includes an alternative model of personality disorders (PDs) in Section III, consisting in part of a ...pathological personality trait model. To date, the 220-item Personality Inventory for DSM-5 (PID-5; Krueger, Derringer, Markon, Watson, & Skodol, 2012) is the only extant self-report instrument explicitly developed to measure this pathological trait model. The present study used item response theory-based analyses in a large sample (n = 1,417) to investigate whether a reduced set of 100 items could be identified from the PID-5 that could measure the 25 traits and 5 domains. This reduced set of PID-5 items was then tested in a community sample of adults currently receiving psychological treatment (n = 109). Across a wide range of criterion variables including NEO PI-R domains and facets, DSM-5 Section II PD scores, and externalizing and internalizing outcomes, the correlational profiles of the original and reduced versions of the PID-5 were nearly identical (rICC = .995). These results provide strong support for the hypothesis that an abbreviated set of PID-5 items can be used to reliably, validly, and efficiently assess these personality disorder traits. The ability to assess the DSM-5 Section III traits using only 100 items has important implications in that it suggests these traits could still be measured in settings in which assessment-related resources (e.g., time, compensation) are limited.
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